Help with automator action for flvtool2

Hi,

I am trying to create an automator application that will allow me to drop a file onto the droplet and have it inject metadata using flvtool2.

Right now my current procedure is to use the terminal command flvtool2 -U -P -c -k -l -v (then drag flv file here)

Is it possible to have automator do this? Right now when I enter that command as 'run shell script' , it gives me an error because it doesnt have a file to run this on. How can I make this so that I can drag a file onto the application droplet and have it run this command?

Thank you in advance to all of you smarter than me!!